SCHRAMM 13
12
Coconut fibre
Coconut fibres are highly durable yet elastic, and this property remains
constant over time due to their high lignin content. Lignin is responsible
for the compressive strength and durability of plant fibres. This makes
the fibres resistant and creates very open and ventilated structures.
Cold foam
Cold foam is one of the most valuable foam qualities. It belongs to the
polyether foams, which, in contrast to standard foams, achieve the high-
est quality values as HR foam (high resilient).
Compression hardness
Compression hardness refers to the pressure required to compress a
foam by 40 % of its original height (DIN 53577). The cell wall is influ-
enced by the addition of hardeners, which in turn significantly determi-
nes the compression hardness. In mattress manufacturing, compression
hardness is the restoring force of a cushioning material at a defined
impression depth.
Compression hardness loss
Even the best materials become softer when subjected to constant me-
chanical stress. As the pelvic/buttock area is the heaviest part of the
body, the maximum compression hardness loss is reached earlier there
than in areas subject to less stress. A hardness loss of approx. 20 % can
be found in the best qualities used by SCHRAMM. A significantly higher
loss of compression hardness is common, with a considerable portion
occurring in the first weeks and months of use. We take this loss into ac-
count from the outset, which means that the mattress is firmer before its
first use and adapts to the body as it is broken in. → Breaking in
Cylinder spring
SCHRAMM uses oven-tempered cylinder springs in various wire thick-
nesses in its SCHRAMM pocket spring mattresses GRAND CRU N°1,
DIVINA, MYTHOS, ANTHEA and HEAVEN, and induction-tempered
cylinder springs in its EMOTION and EMOTION LUXE mattresses, in
accordance with specific requirements and taking into account body
weight and weight distribution.
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Density (RG)
In mattresses, the density of the foam used is a quality feature. The high-
er the density (kg/m3) for a given hardness (see compression hardness),
the better the performance characteristics, i.e. good elasticity with low
material fatigue.
Dimensional stability of the SCHRAMM mattress
The SCHRAMM mattress is made of natural and highly elastic upholste-
ry materials that are not glued together. It is a handcrafted, fully flexible
piece of upholstery. Transport, storage and improper use can change
the size of the mattress. It will return to its original size when stretched or
shaken. → Mattress fitted sheets. Differences of one to two centimetres
in length and width may occur due to the purely handcrafted production
and are not grounds for complaint (EU standard EN 1334).
House dust mite allergy
SCHRAMM mattresses can be equipped to combat house dust mite all-
ergies on request. The sheep‘s wool is replaced with synthetic polyester
wadding certified according to ‘STANDARD 100 by OEKO-TEX®’. This
deprives house dust mites of an essential food source. → Cleaning and
care. The removable and washable cover is quilted with synthetic poly-
ester wadding as standard.
Indentation
The natural signs of wear on a mattress – also known as sleep marks
– are often mistakenly referred to as indentations. → Natural usage cha-
racteristics
Jute linen
Jute linen is the upholstery base fabric, which is manufactured in plain
weave and is used in all SCHRAMM upper and lower mattresses as the
first covering of the spring core and pocket spring core.
